Scott Baio and Garry Marshall Reunite on 'See Dad Run'

“Happy Days” are here again as Scott Baio and Garry Marshall briefly reunited on the Nickelodeon show “See Dad Run.”

Baio, who played Chachi Arcola on “Happy Days,” cast Marshall in a guest starring role as his father. Baio’s new show, in which he plays a stay-at-home dad, is filmed on the same Paramount stage as “Happy Days,” which Marshall, 78, created in 1974.